The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Jan. 16, 2019
Shimadzu Corporation, Kyoto, JP;
Osaka Research Institute of Industrial Science and Technology, Osaka, JP;
City of Nagoya, Nagoya, JP;
Akita Prefecture, Akita, JP;
Tadaoki Takii, Kyoto, JP;
Masaki Nishimura, Osaka, JP;
Satoshi Taniguchi, Nagoya Aichi Pref., JP;
Mitsuhiko Kimura, Akita, JP;
Norifumi Kasai, Tokyo, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Osaka Research Institute of Industrial Science and Technology, Osaka, JP;
City of Nagoya, Nagoya, JP;
AKITA PREFECTURE, Akita, JP;
Abstract
Provided are a striking device and a natural frequency measuring device capable of simply and accurately measuring a natural frequency of a system including force detector. The striking device includes an arm capable of swinging around a spindle, and a steel ball arranged in an end part of the arm on a side opposite to the spindle. The spindle is supported by a supporting part capable of lifting up and down relative to a post erected on a magnet stand. A supporting part for supporting a supporting plate is arranged at a position in the post and above the supporting part. A permanent magnet is placed above the supporting plate. The steel ball falls down in an arc shape from a standby height position when the permanent magnet is removed.